a recipe call for 1/2 cup of ingredient A for every 1 1/5 cups of ingredient B. You use 2 cups of ingredient A. How many cups of ingredient B do you need

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field